1 // Copyright 2020 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef UI_VIEWS_CONTROLS_COMBOBOX_EMPTY_COMBOBOX_MODEL_H_
6 #define UI_VIEWS_CONTROLS_COMBOBOX_EMPTY_COMBOBOX_MODEL_H_
7 
8 #include "ui/base/models/combobox_model.h"
9 
10 namespace views {
11 namespace internal {
12 
13 // An empty model for a combo box.
14 class EmptyComboboxModel final : public ui::ComboboxModel {
15  public:
16   EmptyComboboxModel();
17   EmptyComboboxModel(EmptyComboboxModel&) = delete;
18   EmptyComboboxModel& operator=(const EmptyComboboxModel&) = delete;
19   ~EmptyComboboxModel() override;
20 
21   // ui::ComboboxModel:
22   int GetItemCount() const override;
23   base::string16 GetItemAt(int index) const override;
24   int GetDefaultIndex() const override;
25 };
26 
27 }  // namespace internal
28 }  // namespace views
29 
30 #endif  // UI_VIEWS_CONTROLS_COMBOBOX_EMPTY_COMBOBOX_MODEL_H_
31